Draw-bar and yoke connection.



F. o'con'uon. DRAW BAR. AND YOKE CONNECTION.

I APPLICATION'FILEQ MAR. 18,1315.

' 1,179,747; y Patented Apr. 18, 1916.

3 SHEETS-SHEET 2- 4: 'illlmmll I IN'IIIENTORQ WI NESSES.- firoammrATTORNEY:

1. F. OfCQNNOR. DRAW BAB AND YOKE CONNECTION APPLICATION FI!.ED 34mm.1915. I'

Patented Apr. 1 8 1916.

' lN VEN TOR.

, PATENT OFFICE To -all ur/iom itmag concern: J

I a (citizen of the United Joim F. oooi iio t; oi? .oH cAeo, ILLINOIS,ASSIGNOR To v R GHAZ EWYQRK.

.Be itiknowii that I; .JQIIN F. OCO NOR, States, residing at (iiiczigoin the county of Cool; andyState' of 1 Illinois. -'l a\feiii-\ei' tedapertain new and Useful Improvement in Draw-Bar and Yoke "Conneetions; ofwhich the following is a full, clear, ooiicise and exact description,

reference being. had to the accompanying.

tion.

draw-bar andg yoke connections.

drawingsi forming apart of this specifica- This invention.relatesto'improireinents in An'object f the in 'ention is to provide s mple,readily 1 attachable and: detachable means for conneot'inga yoke anddraw-bar fOl' railway draft {'i g-ings.

"ii'ivention is to provide a yoke 20 Another'an'd 'I e specific objectoftheand draw twoblooks ar on ct n iiw 'empl'oi'i 'earranged ltojfitfthe draw-bar shank and en-,

. blocks hai iiigfshoul dei s' gage the shoulders on the butt thereof,said 01" gibs, preferably providdflvith a p toh, for coofperahleengagement withfshoi lders or gibs formed on The inventionfiirthei'inore "consists in the Y improvementsof the parts and devicesand in the .novel combinations of 0,- i I v specification, Iiigure p theparts and devices as, herein shown, described 101* e -1.

In the drai ng for iiiug a partof this i 1 is a side elevation of a yokeanddraw bar showingone form of r 35 my improvements Fig. 2 is a top planview .ofathe st ructiire shown.in Fig. 1. Figs. ,3 and 4jarevertieahsectihnal views taken respeetiiely on the lines and Met Fig.

:1, and r a detail perspective vview of one Of.tlle l)l( )Cl' (Semployed with my conis a partside elevation, another structure Fig.7.1s,;a top struction. Fi'g. part vert cal section :of embodying myi-ni'ention.

1 plan, ew oh. tl est r-i1c.tu ie sl'ioi'vi iii'Fig. (i. 5 i ig s and 9areQvei-tlcal sectional views taken respectivelyouwthe hues 8-? andS)'-j ,oi Fig. (3, and F 10 is a. detail per riewofithe block employedin this construction. 11 isa part side eleva- ,ti'oii., part\"ei'tieal-seetion of still another construction embodying. inimprovement.

IMFig. 12 1s a top plan view of the structure shown in Fig/11., Figs.Baud l i are vertical sectional riews taken respectively on tl llfl linel fultl 14 of Fig. 11, and Fig. 1e"

DRAW-BAR. AND YOKE CONNECTION Specification of Letters Patent.Application fiied Mm ch 1s;

' is a detail perspective View of aihloick elm;

'dicated in Fig. 2 .by the dottedolinesgto.

' draw-banal provide two likeblo ck s-Ql8"+l8,

iuposi tion', the yoke? 1S) 1915. seriai iio. 15,348. I

iiioyed in this construction r In Said drawing, and irefer ing'tea-Figs. I

1 to o inclus ve, the draw-bar 10 is S11own as provided with the usua-lupper ana iower slioiilders"-1111 and coupler key slot'12 The yoke,designatedgenerally by the refei-ence A, s shown asi'conprisinglfang.upper arm 13, lower arm l l'and r'ear. connectingfqpiece15." Attheir forward ends,.tliear 'ri f 13 and 14 are flared asindicatedfat 16 and V proyided at their extreme ends, with .T- c shapedheads 17 17;, said.,-T l1eacls 1Z5heing provided with aslight;pitchhas;.clearlydn thereby co-act with the blocks,hereinafterq'f described, in the ima nneiof n itfand i thread. Forattaching-the ,T-hea"ds ;;tothe;

each of which consists of a?" side \\'all' ;19;fit'-; ting againstthe'sid'e ofthe draw-bar;shank, an upper inwardly extending port-i on'20 en j half of the top of fthe draw-bar shank, a lower inwardlyoxtending' portion l, 21 engaging the iinder side-"of the -dra.w barshank, and .a Centrally- 'zdispo'sed} elon v gated boss 22 adapted'tofitthe .eoupleiqkey slotof the di:aw-har. 'Eaoh .pQrtion ZO and, 21is'provided with a grooyefor-slot 23 off substantially T-shape in crosssection, said groove in reality acting as a thread and "be ing pitchedto. correspond with'the pitch of the T-11eads1l'-'-+17.',Xt'theirinner". ends; each portion 20 and '21 isprov'idejchwith' shoulder 24adapted'to eiiga'getlie shoulde 11 of thedraw-loar; The blocks 18sfarefi then secured in position by 'afri other suitable means and foriidditional pi te ctio'n, rivets 26-26 uia'yiheusrd as plearlj-"iindieat-ed in Figs; 1, 2 and 3. "iTo asseiuhle the yoke with .the i -1with, the QhI Qk a i iital." position, as indieatel hy dotted liue f 4-.and isthen rotated throufQh an arc; ofjlO' degrees to thereby thread theT-li'eads '17 into the "slots 23-23. 1011 account pfthe pitch providedin the slots 23' a1i d] T-heads Y 17., the yoke will he pu lledtowardthedraw- 1' u bar to its proper position and to retain thef same in thisposition Inlay provide a pin 7 1 .whieh extends througlifl suitable.pertoratioiis in the upper andlower arms oii the"; yoke and through'theusual 'standardriret 11o:

hole in the draw-bar butt, said key or pin key 2 8. As will beunderstood, in draft, the

- shoulders on the upper and lower sides of the T-heaols 17 will engagewith the shoulders formed by the enlarged portions of the slots 2-23 andthus pulling strains from the draw-bar are transmitted through theshoulders 11 to the shoulders 2-1 of the blocks and thus through thelatter to the yoke.

In the construction shown in Figs. (5. to 10 inclusive, the yoke B isshown provided with a forward hood or box-like end 30, the

same consisting of upper and lower walls 3131 and side walls 32 32. bar110 is provided with the usual upper and lower shoulders 111--1l.l andcoupler key slot 112. The inner end of the drawbar butt, as shown, iscylindrical in form as indicated at 33 to permit the hooded end oftheyoke to be rotated thereahmit when the yoke and draw-bar areattached, as hereinafter described. Secured to the drawbar ale twoblocks of like construction 118 118, each of which cons' of a verticalside wall 119, upper portion 120, lower portion 121 and centrallylocated boss 122 adapted to [it within the coupler-key slot 112. Eachportion 120-121 provided near the inner'end thereof with a shoulder 121arranged to engage the draw-bar shoulders 111. On their outer faces,each portion 120 and 121 is provided with a series of alternate grooves31 and ribs 35 forming a thread inasmuch as said grooves and ribs orshoulders are pitched as indicated by the dotted lines in Fig. 7. On theinner sides of each of the upper and lower walls 3- l31 of the hoodedend of the yoke, is provided a corresponding series of alternate ribs orshoulders so and grooves ol pitched to eor-" respond with the pitch ofthe grooves and ribs 3-1 and 35. As will he understood, the blocks 118are fitted over the draw-bar shank and may be secured in place. thereonby any suitable means, such as the rivets 125-125. The yoke is attachedto the draw-bar by first placing the yoke in the horizontal position asindicated by dotted lines in Fig. 8, after which the yoke is given aquarter turn and the corresponding ribs and grooves interengage as shownmore cl *arly in Fig. (3. As in the construction shown in Figs. 1 toinclusive, upon forward movement of the drawbar. the shoulders thereonwill engage the shoulders 121' of the block and the latter through theshoulders, gihs or rihs formed on the outer face thereof by engagementwith the corresponding parts of the yoke will pull the latter forwardly.

1n theconstruction shown in Figs. 11 to 15 inclusive, the yoke is shownas providcd with a hooded forward end 230, the same having outwardlybowed. side walls 232- the block shoulders and and upper and lower walls22ll-23'l.- The draw-bar 210 is provided with the usual coupler key slot212. upper and lower snonr dersill and inner butt ii-l3 rounded on itsupper and lower faces. as clearly indicated in. Fig. 1. For forming theconnection between the yoke and the draw-bar I provide a pair of similarblocks 218 218. each of which consists of a side wall 219. upper portion220 and. lower portion 221. The portions 220 and 221 are so formed thatvtheir inner faces 224. form shoulders for engagement with the draw-barshoulders 21] and the outer faces of said portions 220 and 221 areprovided with a slight pitch (sec Fig. 12) and form shoulders 2 -l5235for engagcmcnt withinwardly turned shoulders or gibs 236 formed on theinner sides of the upper and lower walls's'll of the yoke.

235. Preferably. each block 218 has the side wall tliercof extended inthe form of an car 10 perforated to receive a rivet 225 by which theblocks may be rigidly secured to the draw-bar. The yoke is applied inthe. manner hereinbcfore'set forth for the other two constructions, thatis, by lirst placing the yoke in horizontal position. as indicated bydotted lines in Fig. '13, and-then giving it a quarter turn to bring theshoulders thereof into operative engagement with the shoulders on theblocks. I

From the preceding description, it will be seen that. in ach of theconstructions shown and described. each pair of blocks is of likeconstruction; the same may be cheaply manufactured by casting; thcymaybe readily attached to and detached from any standard draw-l ar havingthe usual upper and lower shoulders: and the blocks may be so formed asto adapt them for a wide variety of connections lhcrcbctwecn and theyoke.

. '\lthough I have herein shown and described the forms which I nowconsider prefcrallle for carrying out my invention. 1 do not wish to beconlincd to the specific constructions shown and described.

\Vhat 1 claim is: 2'

1. In a device of the character described, the combination with adraw-bar having shoulders and provided with a coupler key slot, of ayoke having gibs on the forward ends of the arms thereof, blocks liltingthe draw-lair shankand in engagement with said draw-bar shoulders, saidblocks being provided with. shouhlcrs cooper-able with said gibs ofthefyokc, the engagement of yoke gibs being effected by a quarter turnrelatively between the yoke and draw-bar after the blocks are positionedon the'latter, and means extending through said blocks and said drawbar,2. In a device of the character described, the combination with adraw-bar having up per and lower shoulders, and av yoke, the forwardends of the arms of which are. provided with gibs, of a pair of blocksfitting over the sides, top RIidbOttOm of said drawbar shank and havingmeeting faces forming a vertical division therebeteween, and means forsecuring said blocks to the drawbar, said blocks having upper and lowershoulders cooperable with said gibs of the yoke shoulders being effectedby arelative rotation of the'draw-ba'zi with the blocks thereon and saidyoke; F v

' 3. In a device of thecharacter described, the combination with. a,draw-bar having shoulders, of a yoke having gibs at the forward endthereof, and means for connecting and the engagement of said gibs andsaid yoke with the draw-bar, said means 20 comprising a pair ofblocks'fitting and surrounding the top,bottom and sides of drawbar shankand engageable with said draw-bar shoulders, said blocks being providedwith shoulders cooperable with the gibs of said 25 yoke, said. shouldersand gihs being pro-l 4 vided with apitch and the engagement beingeffected by a turn relatively between yoke and draw-bar after the,blocks are posi tioned on the latter.

In witness that I claim the foregoing I .have hereunto subscribed myname this 4th day of March, 1915. I

I Witnesses:

CARRIE G. RANz, GEORGIA VIGKERY.

the

JOHN F. OCONNOR.

